Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!)

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Last updated 13 abril 2025

Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!)

Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does. [Written by MAL Rewrite]

Onii-chan wa Oshimai! Wiki

First Look: ONIMAI: I'm Now Your Sister!

Art Board Print

Onimai Onimai Oniichan wa Oshimai! Onimai I'm Now Your Sister! | Art Board Print

low res anime on X: Source: Oniichan wa Oshimai! (Onimai: I'm Now Your Sister!) / X

Doujinshi - Onimai / Oyama Mihari & Oyama Mahiro (おにまい(物理)) / Seishin Denpa SOS

Onimai: I'm Now Your Sister! ( Oniichan wa Oshimai! ) Episode 1 Review

ONIMAI: I'm Now Your Sister! TV Anime Sets January 2023 Release with 1st Trailer - Crunchyroll News

Onimai: I'm Now Your Sister! (TV Series 2023) - IMDb

Onimai: I'm Now Your Sister! Wallpapers - Wallpaper Cave

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